On Mon, 29 Jan 2007 17:50:21 -0600, "Neil Gould"
wrote:

Thanks for the clarification, as it is not the answer that I got to the
question I asked about it. But, as you apparently own one and have
observed this condition, your knowledge resolves the conflict. ;-)

No worries.

So, what happens if the fuel level indicators report "full" after a few of
hours of flying, which could be the case in NW_Pilot's ferrying scenario?
Might the GEA presume that they weren't working, and "X" it out on the
display?

I can't say with absolute certainty as I don't have access to the code
directly, but in my experience the GEA happily continues on showing
the pointer at F. It doesn't appear to process the data coming in
beyond saying "input ohm x, display level y". The first issue NW
experienced (Xing the level) was likely similar to issues we've had
when the float produces an out-of-range resistance. They seem to do
that routinely when the tanks are topped off to the point of fuel
coming out of the filler cap when opened and will function fine when
the fuel level goes down a bit. I've seen over 2 hours of an X'd fuel
gauge due to tippy-topped tanks, 182, and uneven burn keeping one tank
high. I even asked at the factory last time I picked one up about the
ferry account and they hadn't heard about it.

I still think the most likely culprit in his account was the
third-party non-integrated (XM? CD?) player hacked into the system.
As I mentioned in another post, it's not like these things haven't
been ferried routinely since 2004, and the lack of field issues like
this in all the aircraft makes and models with G1000 equipment IMO
just doesn't support the assertions that this is some kind of inherent
design defect.